Title : Activation of hypoxia-inducible factor-1 in pulmonary arterial smooth muscle cells by endothelin-1.

Pub. Date : 2013 Apr 15

PMID : 23418090






3 Functional Relationships(s)
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1 Both hypoxia and ET-1 also increased HIF-1alpha mRNA expression and decreased mRNA and protein expression of prolyl hydroxylase 2 (PHD2), which is the protein responsible for targeting HIF-1alpha for O(2)-dependent degradation. Oxygen egl-9 family hypoxia-inducible factor 1 Rattus norvegicus
2 Both hypoxia and ET-1 also increased HIF-1alpha mRNA expression and decreased mRNA and protein expression of prolyl hydroxylase 2 (PHD2), which is the protein responsible for targeting HIF-1alpha for O(2)-dependent degradation. Oxygen egl-9 family hypoxia-inducible factor 1 Rattus norvegicus
3 These results suggest that ET-1 induces a PASMC-specific increase in HIF-1alpha levels by upregulation of HIF-1alpha synthesis and downregulation of PHD2-mediated degradation, thereby amplifying the induction of HIF-1alpha in PASMCs during moderate, prolonged hypoxia. pasmc egl-9 family hypoxia-inducible factor 1 Rattus norvegicus